1030304221 has 4 divisors (see below), whose sum is σ = 1040926012. Its totient is φ = 1019682432.

The previous prime is 1030304201. The next prime is 1030304243. The reversal of 1030304221 is 1224030301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 319015321 + 711288900 = 17861^2 + 26670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030304221 - 2¹¹ = 1030302173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1030304195 and 1030304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030304201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5310750 + ... + 5310943.

It is an arithmetic number, because the mean of its divisors is an integer number (260231503).

Almost surely, 2^1030304221 is an apocalyptic number.

It is an amenable number.

1030304221 is a deficient number, since it is larger than the sum of its proper divisors (10621791).

1030304221 is an equidigital number, since it uses as much as digits as its factorization.

1030304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10621790.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1030304221 is about 32098.3523097370. The cubic root of 1030304221 is about 1010.0010525101.

Adding to 1030304221 its reverse (1224030301), we get a palindrome (2254334522).

The spelling of 1030304221 in words is "one billion, thirty million, three hundred four thousand, two hundred twenty-one".